package com.liu.voluntary.service.impl;

import com.baomidou.mybatisplus.extension.service.IService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.liu.voluntary.mapper.SignMapper;
import com.liu.voluntary.pojo.Sign;
import com.liu.voluntary.service.SignService;

public class SignServiceImpl extends ServiceImpl<SignMapper, Sign> implements SignService {
}
